Camera optical lens

ABSTRACT

The present disclosure a camera optical lens comprising, from an object side to an image side, a first lens having a positive refractive power, a second lens, a third lens having a positive refractive power, a fourth lens, and a fifth lens having a negative refractive power, the camera optical lens satisfying conditions of 0.45≤f3/f≤1.00, 2.50≤d4/d3≤4.50, 1.50≤d7/d8≤3.00 and 2.00≤(R3+R4)/(R3−R4). The camera optical lens can achieve excellent optical characteristics while meeting the designing requirement for having a large aperture and a long focal length and being ultra-thin.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, particular,to a camera optical lens suitable for handheld devices, such as smartphones and digital cameras, and imaging devices, such as monitors or PClenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lens with good imaging quality therefore have become a mainstreamin the market. In order to obtain better imaging quality, the lens thatis traditionally equipped in mobile phone cameras adopts a three-pieceor four-piece lens structure. Also, with the development of technologyand the increase of the diverse demands of users, and as the pixel areaof photosensitive devices is becoming smaller and smaller and therequirement of the system on the imaging quality is improvingconstantly, the five-piece lens structure gradually appears in lensdesigns. There is an urgent need for an ultra-thin camera optical lenshaving a long focal length and achieving excellent opticalcharacteristics.

SUMMARY

In view of the problems, the present disclosure aims to provide a cameralens, which can achieve a high imaging performance while satisfyingdesign requirements for ultra-thin, long focal length lenses.

In an embodiment, the present disclosure provides a camera optical lens.The camera optical lens includes, from an object side to an image side:a first lens having a positive refractive power; a second lens; a thirdlens having a positive refractive power; a fourth lens; and a fifth lenshaving a negative refractive power. The camera optical lens satisfiesfollowing conditions: 0.45≤f3/f≤1.00; 2.50≤d4/d3≤4.50; 1.50≤d7/d8≤3.00;and 2.00≤(R3+R4)/(R3−R4); where f denotes a focal length of the cameraoptical lens; f3 denotes a focal length of the third lens; d3 denotes anon-axis thickness of the second lens; d4 denotes an on-axis distancefrom the image-side surface of the second lens to the object-sidesurface of the third lens; d7 denotes an on-axis thickness of the fourthlens; d8 denotes an on-axis distance from the image-side surface of thefourth lens to the object-side surface of the fifth lens; R3 denotes acurvature radius of the object-side surface of the second lens; and R4denotes a curvature radius of the image-side surface of the second lens.

The present disclosure can achieve ultra-thin, long focal length lenseshaving high optical performance and a big aperture, which are especiallysuitable for camera lens assembly of mobile phones and WEB camera lensesformed by CCD, CMOS and other imaging elements for high pixels.

BRIEF DESCRIPTION OF DRAWINGS

To illustrate the technical solutions according to the embodiments ofthe present disclosure or in the prior art more clearly, theaccompanying drawings for describing the embodiments or the prior artare introduced briefly in the following. Apparently, the accompanyingdrawings in the following description are only some embodiments of thepresent disclosure, and persons of ordinary skill in the art can deriveother drawings from the accompanying drawings without creative efforts.

FIG. 1 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 1 of the present disclosure.

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1.

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1.

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1.

FIG. 5 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 2 of the present disclosure.

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5.

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5.

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5.

FIG. 9 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 3 of the present disclosure.

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9.

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9.

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

FIG. 13 is a schematic diagram of a structure of a camera optical lensaccording to Embodiment 4 of the present disclosure.

FIG. 14 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 13.

FIG. 15 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 13.

FIG. 16 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 13.

DETAILED DESCRIPTION OF EMBODIMENTS

The present disclosure will be further described with reference to theaccompanying drawings and embodiments in the following.

To make the objects, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, in theembodiments of the present disclosure, many technical details areprovided to make readers better understand the present disclosure.However, even without these technical details and any changes andmodifications based on the following embodiments, technical solutionsrequired to be protected by the present disclosure can be implemented.

Embodiment 1

Referring to FIGS. 1-4, the present disclosure provides a camera opticallens 10 of Embodiment 1 of the present disclosure. In FIG. 1, the leftside is an object side and the right side is an image side. The cameraoptical lens 10 includes five lenses, and specifically includes, fromthe object side to the image side: an aperture S1, a first lens L1, asecond lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5. Aglass plate GF is provided between the fifth lens L5 and an imagesurface S1. The glass plate GF may be a glass cover plate or an opticalfilter.

In an embodiment, the first lens L1 has a positive refractive power; thesecond lens L2 has a negative refractive power; the third lens L3 has apositive refractive power; the fourth lens L4 has a positive refractivepower; the fifth lens L5 has a negative refractive power.

Here, a focal length of the entire camera optical lens is defined as f,a focal length of the third lens L3 is defined as f3, an on-axisthickness of the second lens L2 is defines as d3, an on-axis distancefrom the image-side surface of the second lens L2 to the object-sidesurface of the third lens L3 is defined as d4, an on-axis thickness ofthe fourth lens L4 is defined as d7, an on-axis distance from theimage-side surface of the fourth lens L4 to the object-side surface ofthe fifth lens L5 is defined as d8, a curvature radius of theobject-side surface of the second lens L2 is defined as R3, a curvatureradius of the image-side surface of the second lens L2 is defined as R4,and the camera optical lens 10 satisfies the following conditions:

0.45≤f3/f≤1.00   (1)

2.50≤d4/d3≤4.50   (2)

1.50≤d7/d8≤3.00   (3)

2.00≤(R3 +R4)/(R3−R4)   (4)

The condition (1) specifies a range of a ratio of the focal length ofthe third lens to the focal length of the entire camera optical lens.Within this range, the aberration can be effectively corrected, and theimaging quality can be improved.

The condition (2) specifies a range of d4/d3, within which the on-axisthickness of the second lens and the on-axis distance of the image-sidesurface of the second lens to the object-side surface of the third lenscan be effectively distributed, and processing and assembly of thelenses can be facilitated.

The condition (3) specifies a range of d7/d8, within which a long focallength of the lenses can be achieved.

The conditional expression (4) specifies a shape of the second lens.Within the range, a deflection degree of the light passing through thelens can be alleviated to effectively reduce the aberration.

A focal length of the first lens L1 is defined as f1, and the cameraoptical lens 10 further satisfies a condition of 0.65≤f1/f≤1.00, whichspecifies a range of a ratio of the focal length of the first lens tothe focal length of the entire camera optical lens. Within this range,the aberration can be effectively corrected, and the imaging quality canbe improved.

In an embodiment, the object-side surface of the first lens L1 is convexin a paraxial region, and the image-side surface of the first lens L1 isconcave in the paraxial region.

A curvature radius of an object-side surface of the first lens L1 isdefined as R1, a curvature radius of an image-side surface of the firstlens L1 is defined as R2, and the camera optical lens 10 furthersatisfies a condition of −3.80≤(R1+R2)/(R1−R2)≤−0.49. This canreasonably control a shape of the first lens L1 in such a manner thatthe first lens L1 can effectively correct a spherical aberration of thecamera optical lens. Preferably, the camera optical lens 10 furthersatisfies a condition of −2.38≤(R1+R2)/(R1−R2)≤−0.61.

An on-axis thickness of the first lens L1 is defined as d1, a totaloptical length from the object side surface of the first lens L1 to animage surface S1 of the camera optical lens along an optical axis isdefined as TTL, and the camera optical lens 10 further satisfies acondition of 0.07≤d1/TTL≤0.30. This can facilitate achieving ultra-thinlenses. Preferably, the camera optical lens 10 further satisfies acondition of 0.10≤d1/TTL<0.24.

In an embodiment, an object-side surface of the second lens L2 is convexin the proximal region, and an image-side surface of the second lens L2is concave in the proximal region.

A focal length of the second lens L2 is defined as f2. The cameraoptical lens 10 further satisfies a condition of −3.67≤f2/f≤34.95. Bycontrolling a negative power of the second lens L2 within a reasonablerange, correction of the aberration of the optical system can befacilitated. Preferably, the camera optical lens 10 further satisfies acondition of −2.29≤f2/f≤27.96.

An on-axis thickness of the second lens L2 is defines as d3, and thecamera optical lens 10 further satisfies a condition of0.02≤d3/TTL≤0.11. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.03≤d3/TTL<0.09.

In an embodiment, an object-side surface of the third lens L3 is concavein the proximal region, and an image-side surface of the third lens L3is convex in the proximal region.

A curvature radius of the object-side surface of the third lens L3 isdefined as R5, a curvature radius of the image-side surface of the thirdlens L3 is defined as R6, and the camera optical lens 10 furthersatisfies a condition of 0.17≤(R5+R6)/(R5−R6)≤2.65, which specifies ashape of the third lens L3, thereby facilitating shaping of the thirdlens L3. Within this range, a deflection degree of the light passingthrough the lens can be alleviated to effectively reduce the aberration.Preferably, the camera optical lens 10 further satisfies a condition of0.27≤(R5+R6)/(R5−R6)≤2.12.

An on-axis thickness of the third lens L3 is defined as d5, and thecamera optical lens 10 further satisfies a condition of0.06≤d5/TTL≤0.28. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.10≤d5/TTL≤0.22.

In an embodiment, an object-side surface of the fourth lens L4 is convexin the proximal region, and an image-side surface of the fourth lens L4is convex in the proximal region.

A focal length of the fourth lens L4 is defined as f4, and the cameraoptical lens 10 further satisfies a condition of −5.37≤f4/f≤9.68. Theappropriate distribution of refractive power makes it possible that thesystem has the better imaging quality and the lower sensitivity.Preferably, the camera optical lens 10 further satisfies a condition of−3.36≤f4/f≤7.74.

A curvature radius of the object-side surface of the fourth lens L4 isdefined as R7, a curvature radius of the image-side surface of thefourth lens L4 is defined as R8, and the camera optical lens 10 furthersatisfies a condition of −7.12≤(R7+R8)/(R7−R8)≤1.69, which specifies ashape of the fourth lens L4. Within this range, a development towardsultra-thin lens would facilitate correcting a problem like an off-axisaberration. Preferably, the camera optical lens 10 further satisfies acondition of −4.45≤(R7+R8)/(R7−R8)<1.35.

An on-axis thickness of the fourth lens L4 is defined as d7, and thecamera optical lens 10 further satisfies a condition of0.04≤d7/TTL≤0.41. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.07≤d7/TTL≤0.33.

In an embodiment, an object-side surface of the fifth lens L5 is concavein the proximal region, and an image-side surface of the fifth lens L5is concave in the proximal region.

A focal length of the fifth lens L5 is defined as f5, and the cameraoptical lens 10 further satisfies a condition of −1.47≤f5/f≤−0.32, whichcan effectively make a light angle of the camera lens gentle and reducea tolerance sensitivity. Preferably, the camera optical lens 10 furthersatisfies a condition of −0.92≤f5/f<−0.40.

A curvature radius of the object-side surface of the fifth lens L5 isdefined as R9, a curvature radius of the image-side surface of the fifthlens L5 is defined as R10, and the camera optical lens 10 furthersatisfies a condition of −1.96≤(R9+R10)/(R9−R10)≤1.06, which specifies ashape of the fifth lens L5. Within this range, processing of the lensesis facilitated. Preferably, the camera optical lens 10 further satisfiesa condition of −1.22≤(R9+R10)/(R9−R10)≤0.84.

An on-axis thickness of the fifth lens L5 is defined as d9, and thecamera optical lens 10 further satisfies a condition of0.02≤d9/TTL≤0.07. This can facilitate achieving ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.03≤d9/TTL≤0.06.

In an embodiment, the camera optical lens 10 further satisfies acondition of TTL/f≤1.36, so as to achieve ultra-thin lenses.

In an embodiment, an image height of the entire camera optical lens 10is defined as IH, and the camera optical lens 10 further satisfies acondition of f/IH≥2.00, so as to achieve a long focal length of thelenses.

In an embodiment, an F number Fno of the camera optical lens 10 is lessthan or equal to 1.57, such that the camera optical lens 10 has a largeaperture and a better imaging performance.

In an embodiment, a combined focal length of the first lens L1 and thesecond lens L2 is defined as f12, and the camera optical lens 10 furthersatisfies a condition of 0.45≤f12/f≤2.29. Within this range, theaberration and distortion of the camera optical lens 10 can beeliminated, and a back focal length of the camera optical lens 10 can besuppressed to maintain the miniaturization of the image lens system.Preferably, the camera optical lens 10 further satisfies a condition of0.73≤f12/f≤1.83.

In addition, in the camera optical lens 10 provided in an embodiment,the surface of each lens may be aspherical. The aspherical surface canbe easily made into a shape other than a spherical surface, and morecontrol variables can be obtained to reduce aberration and thus toreduce the number of lenses, so that the total length of the cameraoptical lens 10 can be effectively reduced. In an embodiment, both theobject-side surface and the image-side surface of each lens areaspherical.

It should be appreciated that since the first lens L1, the second lensL2, the third lens L3, the fourth lens L4, and the fifth lens L5 havethe aforementioned structure and parameter relationships, the opticalpowers, intervals, and shapes of the respective lenses in the cameraoptical lens 10 can be reasonably distributed, and thus various types ofaberrations are corrected.

In addition, inflexion points and/or arrest points can be arranged on atleast one of the object-side surface and the image-side surface of eachlens, so as to satisfy the demand for high quality imaging. Thedescription below can be referred for specific implementations.

The design data of the camera optical lens 10 in Embodiment 1 of thepresent disclosure are shown as follows.

Table 1 shows the curvature radiuses of the object-side surfaces and theimage-side surfaces, the on-axis thicknesses, the on-axis distances dbetween adjacent lenses, the refractive indexes nd and the abbe numbervd of the first to fifth lenses (L1 to L5) constituting the cameraoptical lens 10 in Embodiment 1 of the present disclosure. It should benoted that the focal length, on-axis distance, curvature radius, on-axisthickness, inflexion point position, and arrest point position are allin units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens to the image surface of the camera opticallens along the optical axis) in mm.

TABLE 1 R d nd νd S1 ∞ d0= −0.689 R1 2.013 d1= 1.087 nd1 1.5450 ν1 55.81R2 53.837 d2= 0.181 R3 1.447 d3= 0.293 nd2 1.6700 ν2 19.39 R4 0.989 d4=1.071 R5 −28.298 d5= 1.008 nd3 1.5450 ν3 55.81 R6 −1.557 d6= 0.030 R726.429 d7= 0.474 nd4 1.6700 ν4 19.39 R8 −67.710 d8= 0.208 R9 −1.516 d9=0.230 nd5 1.5450 ν5 55.81 R10 145.993 d10= 0.150 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.537 In the table, meanings of varioussymbols will be described as follows. S1: aperture; R: curvature radiusof an optical surface, a central curvature radius for a lens; R1:curvature radius of the object-side surface of the first lens L1; R2:curvature radius of the image-side surface of the first lens L1; R3:curvature radius of the object-side surface of the second lens L2; R4:curvature radius of the image-side surface of the second lens L2; R5:curvature radius of the object-side surface of the third lens L3; R6:curvature radius of the image-side surface of the third lens L3; R7:curvature radius of the object-side surface of the fourth lens L4; R8:curvature radius of the image-side surface of the fourth lens L4; R9:curvature radius of the object-side surface of the fifth lens L5; R10:curvature radius of the image-side surface of the fifth lens L5; R11:curvature radius of an object-side surface of the optical filter GF;R12: curvature radius of an image-side surface of the optical filter GF;d: on-axis thickness of a lens and an on-axis distance between lens; d0:on-axis distance from the aperture S1 to the object-side surface of thefirst lens L1; d1: on-axis thickness of the first lens L1; d2: on-axisdistance from the image-side surface of the first lens L1 to theobject-side surface of the second lens L2; d3: on-axis thickness of thesecond lens L2; d4: on-axis distance from the image-side surface of thesecond lens L2 to the object-side surface of the third lens L3; d5:on-axis thickness of the third lens L3; d6: on-axis distance from theimage-side surface of the third lens L3 to the object-side surface ofthe fourth lens L4; d7: on-axis thickness of the fourth lens L4; d8:on-axis distance from the image-side surface of the fourth lens L4 tothe object-side surface of the fifth lens L5; d9: on-axis thickness ofthe fifth lens L5; d10: on-axis distance from the image-side surface ofthe fifth lens L5 to the object-side surface of the optical filter GF;d11: on-axis thickness of the optical filter GF; d12: on-axis distancefrom the image-side surface to the image surface of the optical filterGF; nd: refractive index of the d line; nd1: refractive index of the dline of the first lens L1; nd2: refractive index of the d line of thesecond lens L2; nd3: refractive index of the d line of the third lensL3; nd4: refractive index of the d line of the fourth lens L4; nd5:refractive index of the d line of the fifth lens L5; ndg: refractiveindex of the d line of the optical filter GF; νd: abbe number; ν1: abbenumber of the first lens L1; ν2: abbe number of the second lens L2; ν3:abbe number of the third lens L3; ν4: abbe number of the fourth lens L4;ν5: abbe number of the fifth lens L5; νg: abbe number of the opticalfilter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10R1 −1.0738E−01  8.9992E−04  6.1127E−03 −1.8070E−02 3.0493E−02 R2−9.8969E+01 −7.5424E−02  1.8137E−01 −2.7643E−01 2.9852E−01 R3−6.2266E+00 −7.2506E−03 −5.5290E−02  1.4881E−01 −2.6193E−01  R4−3.1306E+00  0.0000E+00  0.0000E+00  0.0000E+00 0.0000E+00 R5−1.9085E+01 −1.6194E−02  1.5514E−02 −4.9330E−02 1.1057E−01 R6−5.7367E+00 −5.7367E−02 −2.5978E−02  9.7586E−02 −1.3345E−01  R7 1.1749E+00  5.2915E−03 −3.8605E−02 −2.5704E−02 7.9035E−02 R8 7.1678E+01 −6.3461E−02  1.4507E−01 −2.4620E−01 2.0495E−01 R9−5.5434E+00  5.4923E−02 −2.9628E−02 −3.7180E−02 7.4275E−02 R10−9.8185E+01  1.2264E−01 −2.0722E−01  1.8484E−01 −9.7280E−02  Asphericsurface coefficients A12 A14 A16 A18 A20 R1 −3.0969E−02 1.9509E−02−7.4486E−03 1.5814E−03 −1.4378E−04 R2 −2.2488E−01 1.1448E−01 −3.7393E−027.0601E−03 −5.8624E−04 R3  2.9611E−01 −2.1560E−01   9.7171E−02−2.4631E−02   2.6866E−03 R4  0.0000E+00 0.0000E+00  0.0000E+000.0000E+00  0.0000E+00 R5 −1.4217E−01 1.1229E−01 −5.2652E−02 1.3337E−02−1.3975E−03 R6  1.1896E−01 −7.0617E−02   2.6913E−02 −5.8933E−03  5.5692E−04 R7 −9.3936E−02 5.9538E−02 −2.0728E−02 3.7690E−03 −2.8058E−04R8 −1.0365E−01 3.4025E−02 −7.1987E−03 8.9484E−04 −4.9151E−05 R9−4.9726E−02 1.7440E−02 −3.4542E−03 3.6624E−04 −1.6144E−05 R10 3.1649E−02 −6.4174E−03   7.7878E−04 −5.0891E−05   1.3510E−06 In table2, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18 andA20 are aspheric surface coefficients.

IH: Image height

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2) ]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰   (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 10 according to thepresent embodiment. P1R1 and P1R2 represent the object-side surface andthe image-side surface of the first lens L1, P2R1 and P2R2 represent theobject-side surface and the image-side surface of the second lens L2,P3R1 and P3R2 represent the object-side surface and the image-sidesurface of the third lens L3, P4R1 and P4R2 represent the object-sidesurface and the image-side surface of the fourth lens L4, P5R1 and P5R2represent the object-side surface and the image-side surface of thefifth lens L5. The data in the column named “inflexion point position”refer to vertical distances from inflexion points arranged on each lenssurface to the optic axis of the camera optical lens 10. The data in thecolumn named “arrest point position” refer to vertical distances fromarrest points arranged on each lens surface to the optical axis of thecamera optical lens 10.

TABLE 3 Number(s) of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 0 P1R2 3 0.1550.685 1.305 P2R1 1 0.795 P2R2 0 P3R1 1 0.995 P3R2 1 1.265 P4R1 3 0.4551.605 1.775 P4R2 1 1.785 P5R1 3 0.905 1.645 1.985 P5R2 2 1.365 2.205

TABLE 4 Number(s) of Arrest point Arrest point Arrest point arrestpoints position 1 position 2 position 3 P1R1 0 P1R2 3 0.285 1.005 1.435P2R1 0 P2R2 0 P3R1 1 1.285 P3R2 1 1.645 P4R1 1 0.665 P4R2 0 P5R1 1 2.095P5R2 1 1.685

In addition, in the subsequent Table 17, various parameters ofEmbodiments 1 and values corresponding to the parameters specified inthe above conditions are shown.

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor with wavelengths of 430 nm, 510 nm, 578 nm, 588 nm, 610 nm and 650nm after passing the camera optical lens 10, respectively. FIG. 4illustrates a field curvature and a distortion with a wavelength of 588nm after passing the camera optical lens 10. A field curvature S in FIG.4 is a field curvature in a sagittal direction, and T is a fieldcurvature in a tangential direction.

In this Embodiment, an entrance pupil diameter of the camera opticallens 10 is 3.096 mm, an image height of 1.0 H is 2.04 mm, and an FOV(field of view) in a diagonal direction is 49.39°. Thus, the cameraoptical lens 10 has a large aperture and a long focal length, and isultra-thin, thereby achieving excellent optical characteristics.

Embodiment 2

FIG. 5 is a schematic diagram of a structure of a camera optical lens 20according to Embodiment 2. Embodiment 2 is basically the same asEmbodiment 1 and involves symbols having the same meanings as Embodiment1, and only differences therebetween will be described in the following.

An object-side surface of the third lens L3 is convex in the proximalregion, and an object-side surface of the fourth lens L4 is concave inthe proximal region.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0= −0.468 R1 2.207 d1= 0.752 nd1 1.5450 ν1 55.81R2 55.349 d2= 0.489 R3 10.215 d3= 0.421 nd2 1.6700 ν2 19.39 R4 3.419 d4=1.061 R5 6.601 d5= 1.015 nd3 1.5450 ν3 55.81 R6 −3.310 d6= 0.061 R7−58.098 d7= 0.708 nd4 1.6700 ν4 19.39 R8 −3.447 d8= 0.238 R9 −7.689 d9=0.230 nd5 1.5450 ν5 55.81 R10 1.337 d10= 0.350 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.243

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10R1 −1.3808E−02  1.1022E−05 1.3438E−02 −4.0097E−02 7.8845E−02 R2 9.7971E+01 −4.7749E−03 4.3658E−03 −6.1504E−03 1.7159E−02 R3 −5.6730E+01−6.1408E−02 1.6309E−02 −4.4342E−03 5.7954E−03 R4 −1.1069E+01 −2.8568E−022.0155E−02 −3.6293E−02 9.9489E−02 R5 −9.8829E+01  2.1209E−02−5.8141E−02   8.0592E−02 −1.0078E−01  R6 −8.1459E−01 −1.1470E−011.1720E−01 −9.6080E−02 4.5915E−02 R7  8.2966E+01 −6.9805E−02 1.0303E−01−1.6445E−01 1.8426E−01 R8 −2.4219E+01  1.1984E−01 −1.6193E−01  5.4547E−02 5.5002E−02 R9  8.8594E+00 −4.8325E−02 −2.1097E−01  2.0392E−01 −1.3609E−02  R10 −3.0012E+00 −2.1055E−01 1.0790E−01−2.6845E−02 1.8391E−03 Aspheric surface coefficients A12 A14 A16 A18 A20R1 −9.5902E−02 7.3525E−02 −3.4646E−02 9.1888E−03 −1.0586E−03 R2−3.1093E−02 3.1609E−02 −1.8497E−02 5.8167E−03 −7.7248E−04 R3 −1.6262E−022.2973E−02 −1.7261E−02 6.7850E−03 −1.1058E−03 R4 −1.6431E−01 1.6951E−01−1.0492E−01 3.5910E−02 −5.1695E−03 R5  8.8708E−02 −5.1769E−02  1.8776E−02 −3.7282E−03   3.0684E−04 R6 −1.1538E−02 −6.4410E−04  1.6892E−03 −5.6649E−04   6.9867E−05 R7 −1.4347E−01 6.9741E−02−1.9889E−02 2.9205E−03 −1.6209E−04 R8 −6.9259E−02 3.2394E−02 −7.7377E−039.3690E−04 −4.5680E−05 R9 −7.1458E−02 4.5772E−02 −1.2915E−02 1.7872E−03−9.8766E−05 R10 −6.0494E−05 4.0625E−04 −1.5840E−04 2.2604E−05−1.1468E−06

Table 7 and table 8 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 20.

TABLE 7 Number(s) of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 0 P1R2 1 0.945P2R1 1 0.365 P2R2 0 P3R1 2 0.685 1.345 P3R2 1 1.525 P4R1 0 P4R2 0 P5R1 21.285 1.905 P5R2 3 0.545 1.625 1.815

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 P1R2 1 1.175 P2R1 1 0.645 P2R2 0 P3R1 2 1.115 1.465P3R2 0 P4R1 0 P4R2 0 P5R1 0 P5R2 1 1.455

In addition, in the subsequent Table 17, various parameters ofEmbodiments 2 and values corresponding to the parameters specified inthe above conditions are shown.

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 430 nm, 510 nm, 578 nm, 588 nm, 610nm and 650 nm after passing the camera optical lens 20. FIG. 8illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 20. A fieldcurvature S in FIG. 8 is a field curvature in a sagittal direction, andT is a field curvature in a tangential direction.

In an embodiment, an entrance pupil diameter of the camera optical lens20 is 2.735 mm, an image height of 1.0 H is 2.04 mm, and an FOV (fieldof view) in the diagonal direction is 49.54°. Thus, the camera opticallens 20 has a large aperture and a long focal length, and is ultra-thin,thereby achieving excellent optical characteristics.

Embodiment 3

FIG. 9 is a schematic diagram of a structure of a camera optical lens 30according to Embodiment 3. Embodiment 3 is basically the same asEmbodiment 1 and involves symbols having the same meanings as Embodiment1, and only differences therebetween will be described in the following.

In an embodiment, the fourth lens L4 has a negative refractive power.

An image-side surface of the first lens L1 is convex in the proximalregion, and an object-side surface of the fourth lens L4 is concave inthe proximal region.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞ d0= −0.802 R1 1.950 d1= 1.162 nd1 1.5450 ν1 55.81R2 −12.616 d2= 0.164 R3 2.520 d3= 0.262 nd2 1.6700 ν2 19.39 R4 1.322 d4=1.175 R5 −16.504 d5= 0.744 nd3 1.5450 ν3 55.81 R6 −1.144 d6= 0.030 R7−1.585 d7= 0.749 nd4 1.6700 ν4 19.39 R8 −2.834 d8= 0.493 R9 −2.661 d9=0.287 nd5 1.5450 ν5 55.81 R10 4.041 d10= 0.250 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.252

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10R1 −1.5570E−01 1.4177E−03 −7.1798E−04 1.1153E−03 −1.1425E−03 R2−9.9000E+01 −2.7328E−02   8.9462E−02 −1.3857E−01   1.4242E−01 R3−1.0314E+01 −1.1525E−01   1.8561E−01 −2.1511E−01   1.9000E−01 R4−3.4326E+00 −3.8714E−02   1.2594E−01 −5.7228E−02  −1.3846E−01 R5 9.9000E+01 −3.0311E−02   5.4002E−02 −1.7115E−01   3.3270E−01 R6−1.3852E+01 2.6788E−01 −1.0751E+00 1.8764E+00 −2.1093E+00 R7 −2.8671E+013.2405E−01 −1.1118E+00 1.8819E+00 −2.1722E+00 R8 −6.4068E+00 5.6447E−02−1.4291E−01 1.1749E−01 −6.8022E−02 R9 −1.5889E+00 9.4722E−02 −2.5418E−012.8687E−01 −1.9084E−01 R10 −1.6547E+01 1.0857E−02 −1.0989E−01 1.2980E−01−8.4164E−02 Aspheric surface coefficients A12 A14 A16 A18 A20 R17.1047E−04 −2.6474E−04 4.5301E−05 −1.7688E−07 −8.4003E−07  R2−9.9511E−02   4.6380E−02 −1.3756E−02   2.3436E−03 −1.7437E−04  R3−1.2185E−01   5.5655E−02 −1.7420E−02   3.4207E−03 −3.1974E−04  R44.1880E−01 −5.4323E−01 4.0669E−01 −1.6894E−01 3.0767E−02 R5 −3.9468E−01  2.9166E−01 −1.3036E−01   3.2288E−02 −3.3957E−03  R6 1.6322E+00−8.7076E−01 3.0675E−01 −6.4080E−02 5.9632E−03 R7 1.7626E+00 −9.9334E−013.6892E−01 −8.0803E−02 7.8498E−03 R8 3.1638E−02 −1.2577E−02 3.8726E−03−7.5813E−04 6.7608E−05 R9 8.4061E−02 −2.5026E−02 4.8419E−03 −5.4440E−042.6719E−05 R10 3.4686E−02 −9.3272E−03 1.5830E−03 −1.5368E−04 6.5252E−06

Table 11 and Table 12 show design data inflexion points and arrestpoints of each lens in the camera optical lens 30.

TABLE 11 Number(s) of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 2 0.795 1.515 P2R1 0 P2R2 0 P3R1 11.165 P3R2 0 P4R1 0 P4R2 1 1.645 P5R1 1 1.375 P5R2 2 0.625 1.855

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 0 P3R1 1 1.395 P3R2 0 P4R1 0 P4R2 0P5R1 1 1.885 P5R2 2 1.405 2.005

In addition, in the subsequent Table 17, various parameters ofEmbodiments 3 and values corresponding to the parameters specified inthe above conditions are shown.

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 430 nm, 510 nm, 578 nm, 588 nm, 610nm and 650 nm after passing the camera optical lens 30. FIG. 12illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 30. A fieldcurvature S in FIG. 12 is a field curvature in a sagittal direction, andT is a field curvature in a tangential direction.

In an embodiment, an entrance pupil diameter of the camera optical lens30 is 3.247 mm, an image height of 1.0 H is 2.04 mm, and an FOV (fieldof view) in the diagonal direction is 44.00°. Thus, the camera opticallens 30 has a large aperture and a long focal length, and is ultra-thin,thereby achieving excellent optical characteristics.

Embodiment 4

FIG. 13 is a schematic diagram of a structure of a camera optical lens40 according to Embodiment 4. Embodiment 4 is basically the same asEmbodiment 1 and involves symbols having the same meanings as Embodiment1, and only differences therebetween will be described in the following.

In an embodiment, the fourth lens L4 has a negative refractive power,the second lens L2 has a positive refractive power, and an object-sidesurface of the fourth lens L4 is concave in the proximal region.

Table 13 and Table 14 show design data of a camera optical lens 40 inEmbodiment 4 of the present disclosure.

TABLE 13 R d nd νd S1 ∞ d0= −0.738 R1 1.878 d1= 1.010 nd1 1.5450 ν155.81 R2 6.047 d2= 0.083 R3 1.993 d3= 0.230 nd2 1.6700 ν2 19.39 R4 1.953d4= 0.633 R5 −6.409 d5= 0.768 nd3 1.5450 ν3 55.81 R6 −1.778 d6= 0.030 R7−2.492 d7= 1.595 nd4 1.6700 ν4 19.39 R8 −4.437 d8= 0.535 R9 −4.647 d9=0.230 nd5 1.5450 ν5 55.81 R10 3.224 d10= 0.300 R11 ∞ d11= 0.210 ndg1.5168 νg 64.17 R12 ∞ d12= 0.155

Table 14 shows aspherical surface data of each lens of the cameraoptical lens 40 in Embodiment 4 of the present disclosure.

TABLE 14 Conic coefficient Aspheric surface coefficients k A4 A6 A8 A10R1 −5.9529E−02  1.2659E−03  2.6961E−03 −7.5823E−03   1.4055E−02 R2−9.9000E+01 −6.2761E−02  7.6249E−02 −4.8466E−02  −2.0835E−03 R3−7.5201E+00 −2.1194E−02 −3.3520E−02 8.9199E−02 −1.5089E−01 R4−4.0346E+00  3.5950E−02 −8.5609E−02 1.1938E−01 −5.5041E−02 R5−8.7808E+00 −9.0973E−03 −1.7138E−02 5.1502E−02 −1.6378E−01 R6−5.6223E+00  1.1526E−01 −6.1855E−01 1.2299E+00 −1.6670E+00 R7−1.6483E+01  3.4343E−02 −4.2884E−01 8.2772E−01 −1.0377E+00 R8−4.5100E+01 −4.7934E−02  3.1691E−02 −3.9073E−02   3.8186E−02 R9 1.8045E+00 −9.6021E−02  1.0999E−02 3.1029E−02 −2.6991E−02 R10−1.5072E+01 −7.6102E−02  1.2461E−02 2.0437E−02 −2.3878E−02 Asphericsurface coefficients A12 A14 A16 A18 A20 R1 −1.5929E−02   1.1233E−02−4.8123E−03   1.1439E−03 −1.1612E−04 R2 3.7087E−02 −3.6191E−021.7558E−02 −4.4413E−03  4.6446E−04 R3 1.9881E−01 −1.7095E−01 9.0234E−02−2.6433E−02  3.2365E−03 R4 −7.4336E−02   2.0321E−01 −2.0119E−01  9.8195E−02 −1.8980E−02 R5 3.2751E−01 −3.8704E−01 2.7292E−01 −1.0535E−01 1.7189E−02 R6 1.5798E+00 −1.0150E+00 4.1527E−01 −9.6799E−02  9.6973E−03R7 8.2393E−01 −3.5976E−01 3.5471E−02  3.2433E−02 −9.5955E−03 R8−2.5237E−02   1.1308E−02 −3.3186E−03   5.7226E−04 −4.2441E−05 R99.6899E−03  2.5595E−05 −1.3553E−03   4.4089E−04 −4.4551E−05 R101.3019E−02 −4.2395E−03 8.2210E−04 −8.6969E−05  3.8521E−06

Table 15 and table 16 show design data of inflexion points and arrestpoints of each lens of the camera optical lens 40.

TABLE 15 Number(s) of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 0 P1R2 3 0.4751.035 1.315 P2R1 1 1.285 P2R2 0 P3R1 1 1.005 P3R2 0 P4R1 0 P4R2 1 1.465P5R1 1 1.595 P5R2 1 0.515

TABLE 16 Number of Arrest point arrest points position 1 P1R1 0 P1R2 0P2R1 0 P2R2 0 P3R1 1 1.215 P3R2 0 P4R1 0 P4R2 0 P5R1 0 P5R2 1 1.015

In addition, in the subsequent Table 17, various parameters ofEmbodiments 4 and values corresponding to the parameters specified inthe above conditions are shown.

FIG. 14 and FIG. 15 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 430 nm, 510 nm, 578 nm, 588 nm, 610nm and 650 nm after passing the camera optical lens 40. FIG. 16illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 40. A fieldcurvature S in FIG. 16 is a field curvature in a sagittal direction, andT is a field curvature in a tangential direction.

In an embodiment, an entrance pupil diameter of the camera optical lens40 is 3.023 mm, an image height of 1.0 H is 2.04 mm, and an FOV (fieldof view) in the diagonal direction is 45.80°. Thus, the camera opticallens 40 has a large aperture and a long focal length, and is ultra-thin,thereby achieving excellent optical characteristics.

Table 17 in the following shows values corresponding to the conditionsand values of other relevant parameters according to the aforementionedconditions in the Embodiment 1, Embodiment 2, Embodiment 3, andEmbodiment 4.

TABLE 17 Parameters and conditions Embod- Embod- Embod- Embod- iment 1iment 2 iment 3 iment 4 f 4.395 4.279 4.887 4.694 f1 3.805 4.193 3.1864.600 f2 −6.272 −7.844 −4.542 109.365 f3 2.981 4.193 2.215 4.260 f428.353 5.426 −7.058 −12.614 f5 −2.749 −2.069 −2.897 −3.454 f12 5.7936.536 5.669 4.257 Fno 1.42 1.56 1.51 1.55 f3/f 0.68 0.98 0.45 0.91 d4/d33.66 2.52 4.49 2.75 d7/d8 2.28 2.98 1.52 2.98 (R3 + R4)/ 5.32 2.01 3.2198.65 (R3 − R4)

Although the disclosure is illustrated and described herein withreference to specific embodiments, the disclosure is not intended to belimited to the details shown. Rather, various modifications may be madein the details within the scope and range of equivalents of the claimsand without departing from the disclosure.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side: a first lens having a positive refractive power;a second lens; a third lens having a positive refractive power; a fourthlens; and a fifth lens having a negative refractive power; wherein thecamera optical lens satisfies following conditions:0.45≤f3/f≤1.00;2.50≤d4/d3≤4.50;1.50≤d7/d8≤3.00; and2.00≤(R3+R4)/(R3−R4); where f denotes a focal length of the cameraoptical lens; f3 denotes a focal length of the third lens; d3 denotes anon-axis thickness of the second lens; d4 denotes an on-axis distancefrom the image-side surface of the second lens to the object-sidesurface of the third lens; d7 denotes an on-axis thickness of the fourthlens; d8 denotes an on-axis distance from the image-side surface of thefourth lens to the object-side surface of the fifth lens; R3 denotes acurvature radius of the object-side surface of the second lens; and R4denotes a curvature radius of the image-side surface of the second lens.2. The camera optical lens according to claim 1, wherein the cameraoptical lens further satisfies a condition of:0.65≤f1/f≤1.00; where f1 denotes a focal length of the first lens. 3.The camera optical lens according to claim 1, wherein the camera opticallens further satisfies following conditions:−3.80≤(R1+R2)/(R1−R2)≤−0.49; and0.07≤d1/TTL≤0.30; where R1 denotes a curvature radius of the object-sidesurface of the first lens; R2 denotes a curvature radius of theimage-side surface of the first lens; d1 denotes an on-axis thickness ofthe first lens; and TTL denotes a total optical length from theobject-side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.
 4. The camera optical lens accordingto claim 1, wherein the camera optical lens further satisfies followingconditions:−3.67≤f2/f≤34.95; and0.02≤d3/TTL<0.11; where f2 denotes a focal length of the second lens;and TTL denotes a total optical length from the object-side surface ofthe first lens to an image surface of the camera optical lens along anoptical axis.
 5. The camera optical lens according to claim 1, whereinthe camera optical lens further satisfies following conditions:0.17≤(R5+R6)/(R5−R6)≤2.65; and0.06≤d5/TTL≤0.28; where R5 denotes a curvature radius of the object-sidesurface of the third lens; R6 denotes a curvature radius of theimage-side surface of the third lens; d5 denotes an on-axis thickness ofthe third lens; and TTL denotes a total optical length from theobject-side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.
 6. The camera optical lens accordingto claim 1, wherein the camera optical lens further satisfies followingconditions:−5.37≤f4/f≤9.68;−7.12≤(R7+R8)/(R7−R8)≤1.69; and0.04≤d7/TTL≤0.41; where f4 denotes a focal length of the fourth lens; R7denotes a curvature radius of the object-side surface of the fourthlens; R8 denotes a curvature radius of the image-side surface of thefourth lens; and TTL denotes a total optical length from the object-sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.
 7. The camera optical lens according to claim 1,wherein the camera optical lens further satisfies following conditions:−1.47≤f5/f≤−0.32;−1.96≤(R9+R10)/(R9−R10)≤1.06; and0.02≤d9/TTL≤0.07; where f5 denotes a focal length of the fifth lens; R9denotes a curvature radius of the object-side surface of the fifth lens;R10 denotes a curvature radius of the image-side surface of the fifthlens; d9 denotes an on-axis thickness of the fifth lens; and TTL denotesa total optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 8.The camera optical lens according to claim 1, wherein the camera opticallens further satisfies a condition of:TTL/f≤1.36; where TTL denotes a total optical length from theobject-side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.
 9. The camera optical lens accordingto claim 1, wherein the camera optical lens further satisfies acondition of:f/IH≥2.00; where IH denotes an image height of the camera optical lens.10. The camera optical lens according to claim 1, wherein the cameraoptical lens further satisfies a condition of:Fno≤1.57; where Fno denotes an F number of the camera optical lens.